Spin wave theory for 2D disordered hard-core bosons
Strongly Correlated Electrons
2014-12-04 v1 Disordered Systems and Neural Networks
Abstract
A spin-wave (SW) approach for hard-core bosons is presented to treat the problem of two dimensional boson localization in a random potential. After a short review of the method to compute 1/S-corrected observables, the case of random on-site energy is discussed. Whereas the mean-field solution does not display a Bose glass (BG) phase, 1/S corrections do capture BG physics. In particular, the localization of SW excitations is discussed through the inverse participation ratio.
Cite
@article{arxiv.1310.0601,
title = {Spin wave theory for 2D disordered hard-core bosons},
author = {Juan Pablo Álvarez Zúñiga and Gabriel Lemarié and Nicolas Laflorencie},
journal= {arXiv preprint arXiv:1310.0601},
year = {2014}
}
Comments
TIDS15 conference